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    <title>graph_diameter</title>
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    <center>Scilab function</center>
    <div align="right">Last update : September 1996</div>
    <p>
      <b>graph_diameter</b> -  diameter of a graph</p>
    <h3>
      <font color="blue">Calling Sequence</font>
    </h3>
    <dl>
      <dd>
        <tt>[d,p] = graph_diameter(g)  </tt>
      </dd>
    </dl>
    <h3>
      <font color="blue">Parameters</font>
    </h3>
    <ul>
      <li>
        <tt>
          <b>g</b>
        </tt>: graph list</li>
      <li>
        <tt>
          <b>d</b>
        </tt>: integer</li>
      <li>
        <tt>
          <b>p</b>
        </tt>: integer row vector</li>
    </ul>
    <h3>
      <font color="blue">Description</font>
    </h3>
    <p>
      <tt>
        <b>graph_diameter</b>
      </tt> computes the diameter of the graph <tt>
        <b>g</b>
      </tt> i.e. the 
    largest shortest path between two nodes. The length of the arcs are
    supposed to be integer (and the default value is 1). The output is the value 
    <tt>
        <b>d</b>
      </tt> of the length of
    the diameter and <tt>
        <b>p</b>
      </tt> is the corresponding path.</p>
    <h3>
      <font color="blue">Examples</font>
    </h3>
    <pre>

ta=[1 1 2 2 2 3 4 5 5 7 8 8 9 10 10 10 10 11 12 13 13 14 15 16 16 17 17];
he=[2 10 3 5 7 4 2 4 6 8 6 9 7 7 11 13 15 12 13  9 14 11 16 1 17 14 15];
g=make_graph('foo',0,17,ta,he);
g('node_x')=[283 163 63 57 164 164 273 271 339 384 504 513 439 623 631 757 642];
g('node_y')=[59 133 223 318 227 319 221 324 432 141 209 319 428 443 187 151 301];
g('node_diam')=[1:(g('node_number'))]+20;
show_graph(g);
[d,p] = graph_diameter(g)
show_arcs(p);
 
  </pre>
    <h3>
      <font color="blue">See Also</font>
    </h3>
    <p>
      <a href="graph_center.htm">
        <tt>
          <b>graph_center</b>
        </tt>
      </a>,&nbsp;&nbsp;</p>
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